Joseph Sik Pak, OD
Optometrist · Buena Park, CA
Joseph Sik Pak, OD is an optometrist with a practice address in Buena Park, California, and NPI 1073192100, issued on Apr 6, 2021. Check the license (California 34773, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joseph Sik Pak
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 34773 CA
OPT34773TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 6850 Lincoln Ave Ste 204, Buena Park, CA 90620
- Phone
- (714) 927-5192
- Enumerated
- Apr 6, 2021
- Record last updated
- Nov 11, 2022
- Fax
- (253) 252-8801
- Medicare enrollment
- Enrolled (PECOS I20221201001422); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 6850 Lincoln Ave Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kha Do, O.D.Optometrist1316914294
- Khanh Tran, O.D.Optometrist1295723666
Verify Joseph Sik Pak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average optometrist in 2024
1,139 Medicare Part D claims for 335 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Latanoprost425 claims
- Brimonidine Tartrate146 claims
- Dorzolamide-Timolol94 claims
- Prednisolone Acetate82 claims
- Lumigan48 claims
- Ofloxacin43 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $47.57
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Retina Institute OF California Medical Group, A California Medical ParRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Sik Pak among 8,308 optometrist records in California
Joseph Sik Pak, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2019 · median 2008 among the 3,573 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 optometrist records list a practice address in Buena Park
They are 20 of the 728 NPPES records with a practice address in Buena Park, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Buena Park → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Kha Do, O.D.Buena Park, CA 906201316914294
- Osamu Ikeda, O.D.Buena Park, CA 906201619901352
- John Ikeda, O.D.Buena Park, CA 906201215379268
- Sudheshna MiryalaBuena Park, CA 906201184141814
- Aarti Patel, O.D.Buena Park, CA 906201487246336
- Purvi Patel, ODBuena Park, CA 906201811778202
- Dana Phan, O.D.Buena Park, CA 906201144416793
- Khanh Tran, O.D.Buena Park, CA 906201295723666
Common questions
What is Joseph Sik Pak, OD's NPI number?
Joseph Sik Pak, OD's National Provider Identifier (NPI) is 1073192100, issued on Apr 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Sik Pak, OD located?
The NPPES record lists a practice address at 6850 Lincoln Ave Ste 204, Buena Park, CA, 90620. Phone: (714) 927-5192. Providers update this record themselves, so call before visiting.
How can I verify Joseph Sik Pak, OD's license?
NPPES lists California license number 34773, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joseph Sik Pak, OD prescribe under Medicare Part D?
In 2024, Joseph Sik Pak, OD had 1,139 Medicare Part D claims for 335 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.